—Can I come to ask for some advice at any time?
— Yes, of course. _______
| A．If you’re convenient. | B．At your convenience. |
| C．Don’t worry. | D．Don’t mention it. |
The students of the music school study ____.
| A．music but also some other subjects |
| B．some other subjects as well as music |
| C．no subjects but music |
| D．neither music nor some other subjects |
I’d like to have this rope ____ that wire.
| A．joined in | B．joined to |
| C．join in | D．join to |
The reason ____he was late was ____he had taken a wrong bus.
| A．why; because | B．for; because of |
| C．why; that | D．for; that |
The visiting minister expressed his satisfaction with the talk, _________ that he had enjoyed his stay here.
| A．having added | B．to add | C．adding | D．added |
The Turners consider ____ a computer, which is commonly considered _________ a great help in our work and study.
| A．to buy; to be | B．buying; to be |
| C．to buy; being | D．buying; being |